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PMD

PMD

Best Flies for PMD & Sulphur Hatches

Best time: Late spring through summer
Water: Rivers, tailwaters, and spring creeks
Size: Typically 14–18

Shop by Hatch

Use smaller, precise patterns during active hatches and adjust between emergers and dry flies based on trout behavior.

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    Christiaens' GT Adult - Montana Fly Co - Mayfly Dry Fly

    $2.93
    $3.25
    $3.25 - $3.25
    $3.25
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    $2.93

    It's a great all-around mayfly dry The klinkhammer-style curved hook leaves much of the fly's body under the surface, represents a struggling emer...

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    $2.93
    $3.25
    $3.25 - $3.25
    $3.25
    $2.93 - $2.93
    $2.93
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    Film Critic - Umpqua

    $3.32
    $3.69
    $3.69 - $3.69
    $3.69
    $3.32 - $3.32
    $3.32

    Bob Quigley, the king of the "film” designed the Film Critic to match mayflies at their most vulnerable stage of the hatch, while emerging from nym...

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    $3.32
    $3.69
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    $3.69
    $3.32 - $3.32
    $3.32
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    Missing Link Mercer's - Umpqua

    $3.23
    $3.59
    $3.59 - $3.59
    $3.59
    $3.23 - $3.23
    $3.23

    The Missing Link is that fly that works even when when the hatch might be not quite as expected. You may have thought PMDs were going to pop today,...

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    $3.23
    $3.59
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    $3.59
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    Morrish's May Day - Umpqua

    $3.20
    $3.55
    $3.55 - $3.55
    $3.55
    $3.20 - $3.20
    $3.20

    This sneaky little dry/emerger pattern can trick even the pickiest trout. The simple pattern has the right amount of wing material to really pique ...

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    $3.55
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    $3.55
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    Split Case Emerger - Tungsten

    $1.32
    $1.32 - $1.32
    $1.32 - $1.32
    $1.32

    This pattern is deadly when fish are keying on emergers. The emerging stage is when insects are the most vulnerable, and big fat fish slurp them u...

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    $1.32
    $1.32 - $1.32
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    $1.32
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    Split Flag - RIO

    $2.88
    $3.20
    $3.20 - $3.20
    $3.20
    $2.88 - $2.88
    $2.88

    This one is for you, Gen Z. The Spilt Flag is a modern twist on the tried and trued Parachute Adams millennials were given. Stacked hackle allows f...

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    $3.20
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    $3.20
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    $2.88
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How to Fish PMD & Sulphur Hatches

PMD and Sulphur hatches are some of the most consistent mayfly events, often producing steady surface feeding and selective trout. Matching size, profile, and timing is key to success.

  • Start with nymphs before surface activity begins
  • Fish emergers as trout begin feeding just below the surface
  • Switch to dry flies when trout are rising consistently

When PMD & Sulphur Hatches Occur

PMD and Sulphur hatches typically occur in late spring through summer and can last for extended periods on productive rivers.

  • Most common from May through August
  • Often strongest in late morning through afternoon
  • Common on tailwaters and spring creeks

Fly Selection Tips for PMD & Sulphur

Trout feeding on PMDs and Sulphurs are often selective, especially on pressured water.

  • Use smaller patterns (sizes 14–18) to match the hatch
  • Downsize if trout are refusing your fly
  • Emergers are often more effective than dry flies during heavy hatches

PMD & Sulphur Fly Quality & Construction

  • Hooks: Chemically sharpened for consistent hook sets
  • Materials: Fine dubbing and delicate profiles for realistic imitations
  • Sizes: Consistent sizing for precise hatch matching
  • Tested: Proven effective on technical trout water

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